Using the case study of volume, we will step through the van Hiele levels of thought. Using physical and instructional technology (3-D modeling), we will go from a wet "level one" demo through multiple perspectives on Cavalieri's principle (levels three and four), finishing up with abstraction to non-Euclidean volume.

Presentation Format: 9-12 Session
Grade Band Audience: Preservice and Inservice, 9 to 12